Safety-clevis



J. ZUBAL.

SAFETY'CLEVIS.

APPLICATION FILED DEC. 18. 1919.

l, 35 1 ,825. Patented Smut. 7, H296 IIELE mmwoz Q Witness 77 Zn Z'a HZ 1M.

To all whom it may concern;

l' r t'lENT OFFICE.

JOHN :ZUBAL, "or wet est, COLORADO.

sArETy-oLnvIs.

Fatented Sept. 7, 1920.

Application filed December.l8,-1919. Serial No. 345,699.

Be it known that l, Jenn Zn 01" the Unite States,.residing at alsen, in the county of linertano d State o'iiJColorado, have invented certain-new and useful Improvements in Safety-Clevises; and I do declare the following to be a tall, clear, and enact desiription ot the invention, l ch as will enable others 1 slrilredinthe art to which it apper ains to make and use tilSiSillllG.

This invention relates to improvements in clevis pin locks. a 1 1, r

The primary object is to provide a simple and pl'tlCblt'tll lock for cle'cis pins, said lock providing means for positively retaining, the

pin against rotation or longitudinal movement.

lVith the above and other objects in view the invention consists of certain novel features oi construction, and the combination and arrangement of parts as will be hereinafter more fully described and claimed.

1 attain these objects by the construction illustrated in the accompanying drawings, in which Figure l, is a sectional view showing the locking bolt in operative position;

Fig. 2, is a sectional view taken on the line 2--2 of Fig. l;

3, is a sectional view taken on the line 33 of Fig. 1;

Fig. l, a top plan view of the frame; and

F1g. 5, is a vertical sectional new 015 a modified -1' orm of locking bolt.

Similar numerals of reference desigi ate similar parts throughout the several views.

Reference now had to the din 'ings in which is shown a clevis C including a. pair of parallel spaced arins which for the sake t clearness will be hereinai te referred to as upper and lower arms 1 and 2 respectively. The arms are provided adj acent outer ends with pair of alined pin 'nggs Adjacent the pin opening in upper arm 1 is a bolt hole arranged parallel with the pin opening in said arm.

An annular stop -flange 5 is formed on the l clevis pin 7 provided near its upper bolt hole at its upper end, said r 6 in a citizen end with an annnla" tlange or stop 8 adapted to rest on the outer t'ace ot' the upper arm; Formed in the upper face of the annular iiange 8 a pair of radially extending notches 9 adapted to receive a lug to be 0 scribed. The upper or outer por ion of t e clevis pin is provided with the usual ransverse opening for the rec ption ot a 1 and rotatably mounted in the tndably bolt hole -l is a looping oolt 10 provided adjacent its upper end with a laterally extendl g ll having a flat lower face and adapted for re eption in one of the notches 9 ii the lange on said pin. Disposed diametrically opposite the lug 11, but somewhat lower, is a second lug 12 adapted to in the notch or recess 6 simultaneously with the seating oi the other log 11 in its seat.

Surrounding the locking olt is an expansion COll sn'ing l which passes upi s i'lfl'l Q 5 ant downwardly a ainst tl e to wardly against a pin ll or other suitable stop. The spring is adapted to actuate the bolt in one direction, retaining the lugs in their seats when they are in operative positions. l ornied integral with the locking belt, at its upper end, is a handle 15 for operating the bol in operation. the locking bolt 10 is positioned as indicaed in Fig. 3, the lug 12 retaining the bolt in raised position. Th' clevis pin is inserted into the pin openings and the bolt is turned to the position int cated in Fig. i, in which position the two lugs are seated and the coil spring is acting to retain them in their th- 'eby pl venting accidental nio seinent or any direction.

In a modified form illustrated in Fig. 5.

.z'. I V. From the rotegoing n connection with the accoi the construetion and o vention will be readily understood without requiring a more extended a lanation.

Various changes the i and minor ription taken in zinying drawing,

resorted to Without departing from the principle or sacrificing any of the advantages of the claimed constructions.

I claim: V

1. In a clevis, a frame having a pair of spaced arms provided with alined pin openings, one of said arms having a notch in its outer face, a pin insertible in said openings, a stop formed on the pm ad acent its outer end adapted to rest on one arm. of

said frame, a slidable and. rotatable bolt outer am and adapted to rest on one arm of said frame, a slidable and rotatable bolt carried by one arm, a lug on said bolt adapted for reception in the notch in said flange, a second lug on said bolt diametricallyopposite the first lug and receivable in the pm openings, one of said arms having a bolt holedisposed adjacent to and parallel with pin openings, an annularstop flange formed adjacent the outer end of the bolt hole, said flange having a notch in its upper face, a. pininserti ble in said pin openings, an annular flange formed on said pins a'djacent its outer. end, the flange'on said pin having. a notch in its upper face, a manually operablelocking bolt slidable and rotatable in said bolt hole, a lug formed on said boltadjacent its outer end and adapted tov be receivedssinthe notch. inthe pin flange, a second. lug disposed diametrically opposite and inwardlyvfrom the. other; lug, said second lugvbeingv adapted for reception in the notch in thestop flange, and a, coil spring. surroundingsaid bolt and pressing against the lower face of the stop flange to actuate thebolt in one. direction.

In: testimonyavhereof ]l have hereunto set m hand;

y JOHN ZUB AL. 

